Cron Verdict Nudge 48H

Trigger the 48h behavioral rescue email check.

Fires the "Your first model verdict is ready" email to trialing users whose trial is ~48h old and who have NOT yet opened a stock verdict (first_screener_run_at IS NULL). Idempotent — _claim_send_slot(uid, 48) guarantees each user receives it at most once. Respects onboarding_opt_out.

Runs synchronously so a manual/Railway-Cron caller sees the full send result (sent / skipped_activated / errors). Also wired into APScheduler daily at 10:00 UTC (id=verdict_nudge_48h) — this HTTP endpoint adds an out-of-process trigger so the rescue email can be force-run, Railway-Cron-driven, and watchdog-recoverable if in-process scheduling is interrupted by a redeploy.

Auth: X-Cron-Secret.